Method of manufacturing glassware.



F. L. ARBOGAST. METHOD or MANUFACTURING GLASSWARE. APPLICATION FILED APR.4.1908.

Patented Nov. 24L 1908 UNITED STATES PATENT OFFICE.

FREDERICK L. ARBOGAST, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO J. E. ROTH, OF PITTSBURG, PENNSYLVANIA METHOD OF MANUFACTURING GLASSWARE.

Specification of Letters Patent.

Patented Nov. 24, 1908.

Application filed April 4, 1908. Serial No. 425,178.

To all whom it may concern:

Be it known that I, F nnnnnick L. Anno- (msr, a citizen of the United States, residin at Pitts-burg, in the county of Allegheny and State of Pennsylvania, have invente certain new and useful Improvements in Methods of Manufacturing Glassware, of which the following is a specification.

This invention has relation to the manufacture of glass ware and articularly to the manufacture of hollow g ass ware, such as bottles having laterally projecting studs on their necks, at or near their months for the attachment of caps or closures.

The object of the invention is to provide a novel method for the production of such studs as a finishing step after the completion of the neck and body of the bottle in a proper blow mold. The method contemplates and consists in reducing the studs on the' neck of the bott e, or on some other part of a bottle or other article by means of suction.

In carrying out my invention the gathering of glass to form the bottle is worked in the usual manner and laced in a suitable mold having at its use mouth a plurality of wellsor cavities of the size and shape of'thestuds to be produced. These cavities communicate through minute holes in the mold with larger holes leading to the exterior of the mold in which are inserted nipples connected to a hoseleading from a suitable vacuum-pump or suction creating apparatus.

When thefsoft lass is inserted in the mold and the body an neck inolded or blown to shape a valve in the pipe leading from the suction apparatus is pened-;'immediately the air is 'sucked out o the cavities in the neck of theinold and the glass is forced into the cavities by the pressure of the air within the bottle. The projections being thus formed, the mold is opened and the bottle transferred to the ifiIllSl'lGI. This method can be used to produce projections on a bottle first completed in a separate mold, and the necks then reheated and inserted in a small mold or rin having the stud producgn cavities. e method can also be use else than bottles, and on otherwise finished portion near the.

or forming projections on other artiarticles on which projections or studs are desired for the purpose of attaching metallic parts.

In the accompanying drawing illustrating apparatus for carrying my invention into e ect: Figure 1 is a top plan view. vFi 2 is a vertical sectional view of the mold without the bottle. Fi 3 is a similar View of the mold with the bottle.

1 desi nates a two part bottle blow mold of the usual type having at the upper part of its neck portion 2, near the mouth 3, the small horizontal cavities 4 of any desiredshape or size but preferably of a size and shape to form on the bottle neck studs suitable to hold a metallic closurecap havin a dependin the studs. Ho es 5 are bored into the wall of the mold in line with the cavities 4, and communicate with the latter through the series of minute holes 6. In the holes 5 are fitted sections of tubing or nipples 7 each having connected to its outer end an elbow tube 8. To each elbow is attached a short section of flexible hose 9 and. these are attached to a V tube 10, which is mounted for convenience on a tripod 11 or other support,

is soft creating a vacuum in said cavities.

2. The foot od of formlng PIOJGCtlOIlS on the body and neck of the bott in a mol having cavities near its mouth, and then the cavities wherebythe glass will be forced into the cavities by atmospheric pressure.

In testimony whereof I have aflixed my -signature, in presence of two witnesses.

FREDERICK L. ARBOGAST. Witnesses:

FRANK M. SANKEY,

THOMAS H. SANKEY.

flange with bayonet slots-to lnterlock wit pump 13 or other suction a 'paratus. To

in inserting the sort" lateral cav of glass and afterwards, and while the 'glass" the neck of a bottle consistingem blowing while the glass is soft creating a vacuum in 

